diff --git a/include/uv/win.h b/include/uv/win.h
index 59a5d86e..62be4b04 100644
--- a/include/uv/win.h
+++ b/include/uv/win.h
@@ -223,7 +223,7 @@ typedef struct _AFD_POLL_INFO {
   AFD_POLL_HANDLE_INFO Handles[1];
 } AFD_POLL_INFO, *PAFD_POLL_INFO;
 
-#define UV_MSAFD_PROVIDER_COUNT 3
+#define UV_MSAFD_PROVIDER_COUNT 4
 
 
 /**
diff --git a/src/win/poll.c b/src/win/poll.c
index 53a4fd97..bd531b06 100644
--- a/src/win/poll.c
+++ b/src/win/poll.c
@@ -34,7 +34,9 @@ static const GUID uv_msafd_provider_ids[UV_MSAFD_PROVIDER_COUNT] = {
   {0xf9eab0c0, 0x26d4, 0x11d0,
       {0xbb, 0xbf, 0x00, 0xaa, 0x00, 0x6c, 0x34, 0xe4}},
   {0x9fc48064, 0x7298, 0x43e4,
-      {0xb7, 0xbd, 0x18, 0x1f, 0x20, 0x89, 0x79, 0x2a}}
+      {0xb7, 0xbd, 0x18, 0x1f, 0x20, 0x89, 0x79, 0x2a}},
+  {0xa00943d9, 0x9c2e, 0x4633,
+      {0x9b, 0x59, 0x00, 0x57, 0xa3, 0x16, 0x09, 0x94}}
 };
 
 typedef struct uv_single_fd_set_s {